/*
 *   Copyright 2008 Francois Fernandes
 *
 *   Licensed under the Apache License, Version 2.0 (the "License");
 *   you may not use this file except in compliance with the License.
 *   You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *   Unless required by applicable law or agreed to in writing, software
 *   distributed under the License is distributed on an "AS IS" BASIS,
 *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *   See the License for the specific language governing permissions and
 *   limitations under the License.
 */
package com.googlecode.opendoclibrary.internal.impl.fs.meta;

import java.util.Iterator;
import java.util.Map.Entry;

import com.googlecode.opendoclibrary.library.spi.IMetadataEntry;

class ViewIterator implements Iterator<IMetadataEntry>
{
    private String namespacePrefix;

    private Iterator<Entry<String, String>> targetIter;

    public ViewIterator( String namespacePrefix, Iterator<Entry<String, String>> targetIter )
    {
        super();
        this.namespacePrefix = namespacePrefix;
        this.targetIter = targetIter;
    }

    @Override
    public boolean hasNext()
    {
        return targetIter.hasNext();
    }

    @Override
    public IMetadataEntry next()
    {
        Entry<String, String> e = targetIter.next();
        return new MetadataEntry( namespacePrefix, e.getKey(), e.getValue() );
    }

    @Override
    public void remove()
    {
        throw new UnsupportedOperationException();
    }
}